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Fig. 7. E-afferent response and PIV. (A) Averaged (n=8) vector plots based
on particle motions–measured in the vertical plane–caused by the
vortex stimulus. Particle motions were recorded (from left to right)
immediately before first threshold crossing, at first and second threshold
crossing, and 200 ms after second threshold crossing. Gray bars indicate the
rostro-caudal position of the neuromast. (B) Raster plots of the responses to
a vortex stimulus and (C) peri-stimulus–time histograms (PSTHs; bin
width 20 ms) based on these raster plots. In this figure and in Figs
8,
9, the vertical gray bars
indicate the neural activity recorded during the 40 ms time windows on which
the respective PIV images are based.
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